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<html lang="en">
<head>
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    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <div id="root"></div>
    <script src="./vue3基础源码/vue3.js"></script>
    <script>
        const app = Vue.createApp({
            data(){
                return {
                    cont:1,
                    pric:2
                }
            },
            watch:{
                cont(a,b){
                    console.log(a,b);
                },
                pric(a,b){
                    setTimeout(()=>{
                        this.pric = 100;
                    },3000)
                }
            },
            computed:{
                total(){
                    return this.cont + this.pric
                }
            },
            methods:{
                computeFn(){
                    return this.cont * this.pric;
                }
            },
            template:`
                <div>{{total}}</div>
            `
        });
        const vm = app.mount("#root")
    </script>
</body>
</html>